Wrench



Oct. 14 1924. 1,511,226

S. O. LAWRENCE WRENCH Filed Jan. 9, 1922 eawmufl wl' 76 ll H PatentedGet. 14, 1924.

UNITED STATES I 1,511,226 PATENT orr cc.

STANLEY 0. LAWRENCE, OF CHICAGO, ILLINOIS, ASSIGNOB "130 THE BECKLEY-BALSTON (30., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

WRENCH.

Application filed January 9, 1922. Serial No. 527,839.

To all whom it may concern:

Be it known that l, STANLEY O. LAW- nENon, a citizen of the UnitedStates, and a resident of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Wrenches,

. of which the following is a full, clear, and

exact description.

The invention relates to wrenches and more particularly to th ratchettype.

One object of the invention is to provide an improved ratchet wrenchwhich is adapted to operate with the minimum lost motion during reversalof the stroke. Another object is to provide a wrench of this type whichis simple in construction and efficient in operation.

In the drawings: Fig. 1 is a perspective of a wrench embodying I theinvention. Fig. 2. is a plan, the side plate being removed. Fig. 3 is asection taken on line 33 of Fig. 2. Fig. 4 is a side elevation, partsbeing shown in section. 5 is a detail of one of the springs for shiftingthe rollers.

The invention is exemplified in a wrench comprising relatively rotatablemembers. One of said members is provided with a cylindrical socket 6 anda handle "I integrally formed with the socket and extending from oneside thereof. The other of said members comprises a body 8 fitted to andin the irmer periphery of the socket 6. a flange 53 integral with thebody and projecting radially there from to lap one side of said body anda plate 10 secured to the body by screws ii so that said member will berotatable in and confined against longitudinal movement relatively t0the socket 6. The body 8 isprovided with an opening or socket 12 adaptedto receive the polygonal portion of a socket wrench or nut. Theconstruction illustrated is adapted more particularly for the operationof a series of wrench sockets provided with a polygonal portion of thesame size. Body 8 is provided in its outer periphery with a series ofpockets 13 each formed with surfaces 14 and 15 substantially at rightangles to each other. A cylindrical roller 16 is provided in each pocketand is adapted to form a Wedge between the surface 14 and the innerperiphery of socket 6 to lock the members together for rotation in onedirection and to automatically release the members so one may be rotatedrelatively to the other in reverse direction. In order to avoid lostmotion, fiat springs 17 are interposed between the surfaces 15 and therollers 16 respectively, the pressure of the springs tending toyieldingly hold the rollers in wedging or operative position in thepockets 13. In many instances, for example where the stroke of thehandle 7 must be short, it is of importance to avoid lost motion duringthe retractile stroke of the handle, and by mploying 'these springs,this object is efit'ectively attained.

The invention exemplifies a wrench of the ratchet type in whichautomatically actin rollers are used and in which substantia lost motionbetween the members is avoided. In practice. the members may be formedof forgings. By removing the screws 11, themembers can be readilyseparated when desired.

. The invention is not be be understood as restricted to the details setfomh, since these may modified within the scope of the appended claims,without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire tosecure by Let tors Patent, is:

In a wrench, the combination of an outer member having a cylindricalopening extending completely and transversely therethrough and providedwith a handle whereby it may be turned, an inner member and rotatable insaid cylindrical opening and provided with a socket extend ingtransversely therethrough and pockets extending entirely across itsperiphery, rollers in the pockets for locking th members together forconjoint rotation in one directioh, an integral outwardly extendingflange at one side of the inner member lapping one of the outer faces ofthe outer member and forming a closure for one end of the pockets, and aremovable plate secured to the other side of the inner member lappingthe outer face of the other side of the outer member to hold the innermember in said opening and forming a closure for the other end 0 saidpockets.

2. In a wrench, the combination of an outer member having a cylindricalopening extending completely and transversely therethrough and providedwith a. handle whereby it may be turned, on inner member, fitting androtatable in said cylindrical opening, and proyided with a socketextending transverse! therethrough, and pockets extending entire yacross its periphe rollers in the pockets for locking the mem rstogether for conjoint rotation 1n one direction, an integrail outwardlyextending flange at oneside of the inner member lapping one of the outerfaces of the outer member and forming a closure for one end of thepockets, a;

. removable plate secured-to the other side of the inner member, lappingthe outer face 10 of the other side of the outer member to hold theinner member in said opening, and forming a, closure for the other endof said pock-' ets, and leaf-springs in said pockets and engaging therollers to press them into opem- 15

